Experimental and theoretical lifetimes and transition probabilities for spectral lines in Nb II

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Table A.1.

Experimental and theoretical branching fractions for transitions in Nb II.

Upper	Lower	λ_air^(a) [Å]	σ^(a) [cm⁻¹]	BF_exp	Unc	BF_theory		log(gf)_exp	Unc_gf

level ^(a) [cm⁻¹]	level ^(a)				[%]	This work	Kurucz ^(b)		[%]
6s e⁵F₅	5p ⁵G₅	3002.242	33 298.731	0.0485	15	0.063	0.061	−0.549	16
E = 68 772.928	5p ⁵G₆	3093.403	32 317.471	0.5705	4	0.419	0.418	0.548	5
	5p ⁵F₄	3199.634	31 244.546	0.0308	16	0.064	0.071	−0.691	17
	5p ⁵F₅	3251.244	30 748.592	0.1982	12	0.195	0.193	0.132	12
	5p ⁵D₄	3279.714	30 481.676	0.1150	12	0.213	0.200	−0.097	13
	5p ³G₅	3396.035	28 669.323	0.0200	17	0.029	0.035	−0.826	18
Residual						0.017


5d e⁵H₃	5p ⁵G₂	2662.720	37 544.414	0.9086	1	0.904	0.908	0.612	12
E = 70 895.504	5p ⁵G₃	2703.636	36 976.260	0.0514	7	0.056	0.042	−0.621	14
Residual						0.041


5d e⁵P₁	5p ³D₁	2771.597	36 069.627	BL		0.078	0.135
	5p ⁵D₀	2970.218	33 657.739	0.1625	18	0.177	0.153	−0.513	20
E = 70 995.981	5p ⁵D₁	2986.352	33 475.905	0.4570	12	0.422	0.402	−0.059	14
	5p ⁵D₂	3014.925	33 158.665	0.2365	16	0.257	0.215	−0.337	17
Residual						0.144


5d e⁵F₁	5p ³D₁	2753.270	36 309.713	0.4332	16	0.446	0.424	−0.173	18
E = 71 196.067	5p ³D₂	2802.238	35 675.245	0.0993	18	0.117	0.102	−0.797	19
	5p ⁵D₀	2949.180	33 897.825	0.1555	22	0.125	0.166	−0.558	23
Residual						0.313


5d e⁵H₅	5p ⁵G₄	2698.048	37 052.967	0.8796	1	0.881	0.858	0.734	8
E = 71 684.873	5p ⁵G₅	2760.801	36 210.803	0.0263	7	0.033	0.020	−0.771	10
	5p ⁵F₄	2926.845	34 156.618	0.0771	7	0.069	0.095	−0.253	11
Residual						0.018


5d e⁵P₃	5p ⁵G₄	2666.356	37 493.214	0.0595	6	0.001	0.047	−0.654	10
E = 72 125.247	5p ³D₂	2731.102	36 604.425	0.0813	6	0.028	0.008	−0.497	10
	5p ⁵F₂	2843.105	35 162.473	0.0126	22	0.013	0.009	−1.273	23
	5p ⁵F₃	2876.991	34 748.346	0.3501 ^(c)	15	0.130	0.003	0.182	17
	5p ⁵F₄	2889.588	34 596.865	0.0482	9	0.024	0.002	−0.676	12
	5p ⁵D₂	2912.227	34 327.931	0.1126	7	0.038	0.004	−0.300	10
	5p ⁵D₄	2954.744	33 833.995	0.3359	6	0.617	0.418	0.187	10
Residual ^(d)						0.150


5d e⁵F₃	5p ⁵G₃	2612.653	38 263.846	0.0452	3	0.079	0.065	−0.811	8
E = 72 183.090	5p ⁵G₄	2662.249	37 551.057	0.1077	3	0.148	0.096	−0.417	8
	5p ³D₃	2805.809	35 629.852	0.4720	2	0.374	0.076	0.270	8
	5p ⁵F₃	2872.209	34 806.189	0.0307	12	0.135	0.317	−0.896	14
	5p ⁵F₄	2884.765	34 654.708	0.0300	12	0.067	0.068	−0.903	14
	5p ⁵D₂	2907.328	34 385.774	0.0354	13	0.106	0.150	−0.824	15
	5p ⁵D₃	2943.199	33 966.703	0.0750	9	0.035	0.000	−0.487	12
	5p ⁵D₄	2949.701	33 891.838	0.2041	5	0.011	0.116	−0.051	9
Residual ^(d)						0.045


5d e⁵H₆	5p ⁵G₅	2719.730	36 757.461	0.9057	1	0.910	0.894	0.826	8
E = 72 231.658	5p ⁵G₆	2794.330	35 776.201	0.0168	8	0.016	0.010	−0.883	11
	5p ⁵F₅	2922.495	34 207.322	0.0725	7	0.069	0.091	−0.208	11
Residual						0.004

5d e⁵G₅	5p ⁵G₄	2642.713	37 828.636	0.0455	4	0.026	0.063	−0.613	10
E = 72 460.669	5p ⁵G₅	2702.889	36 986.472	0.3307	3	0.295	0.311	0.278	10
	5p ⁵F₄	2861.841	34 932.287	0.3975	3	0.410	0.361	0.408	10
	5p ⁵F₅	2903.059	34 436.333	0.0719	5	0.085	0.071	−0.323	11
	5p ⁵D₄	2925.737	34 169.417	0.1315	4	0.160	0.167	−0.053	10
Residual						0.024


5d e⁵F₄	5p ⁵G₄	2631.286	37 992.898	0.1099	3	0.115	0.109	−0.289	8
E = 72 624.931	5p ⁵G₅	2690.938	37 150.734	0.1548	3	0.131	0.124	−0.121	8
	5p ³D₃	2771.439	36 071.693	0.0725	4	0.065	0.075	−0.425	8
	5p ⁵F₄	2848.446	35 096.549	0.4833	2	0.502	0.489	0.423	8
	5p ⁵F₅	2889.276	34 600.595	0.0244	9	0.028	0.020	−0.862	12
	5p ⁵D₃	2905.404	34 408.544	0.1097	4	0.116	0.123	−0.204	9
	5p ³G₄	3003.060	33 289.661	0.0254	14	0.023	0.025	−0.811	16
Residual						0.020


5d e⁵H₇	5p ⁵G₆	2746.002	36 405.813	1.0000		1.000	0.998	0.987	6
E = 72 861.270
Residual						0.000


5d e⁵F₅	5p ⁵G₅	2655.876	37 641.073	0.1646	3	0.130	0.114	−0.008	8
E = 73 115.352	5p ⁵G₆	2726.969	36 659.813	0.1011	3	0.096	0.094	−0.196	8
	5p ⁵F₄	2809.190	35 586.888	0.0659	4	0.068	0.068	−0.357	9
	5p ⁵F₅	2848.895	35 090.934	0.4537	2	0.480	0.475	0.494	8
	5p ⁵D₄	2870.732	34 824.018	0.1551	4	0.160	0.175	0.034	9
	5p ³G₅	3028.343	33 011.665	0.0465	16	0.053	0.055	−0.442	18
Residual						0.013


5d e⁵G₆	5p ⁵G₅	2652.649	37 686.946	0.0542	4	0.027	0.055	−0.451	10
E = 73 161.143	5p ⁵G₆	2723.567	36 705.686	0.4190	3	0.409	0.404	0.460	10
	5p ⁵F₅	2845.182	35 136.807	0.4929	3	0.529	0.505	0.569	10
	5p ³G₅	3024.148	33 057.538	0.0329	14	0.034	0.028	−0.554	17
Residual						0.011

Notes.

^(c)

Corrected for blend (see text).

^(d)

Residual not included in these levels (see text).

References.

^(a)

Ryabtsev et al. (2000).

^(b)

Kurucz (2017).

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